http://www.raywenck.com/ghost-of-a-chance
Alan Swift died before he could deliver information on a terrorist's bombing to the police. Unable to accept that failure, Alan searches for a way back to the living, if only long enough to get his message out. Thwarted at every turn, frustrated and in danger of losing his soul, his restless spirit stumbles across a comatose man, Mac, whose tenuous existence is balanced by a thin thread between life and death.
Able to make contact with Mac, Alan tries to convince him to relay the message, but to do so may mean the end of his own life. But even if Mac can deliver the warning, will anyone take him seriously?
With the bomb nearing detonation...